{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:21:09.252343", "data_source": "ERA5", "website": "http://wexa.jamstec.go.jp", "Author": "Patrick Martineau"}, "event_id": {"name": "Event ID", "description": "A unique identifier based on: beginning_date, end_date, longitude, and latitude", "value": "2022-Jun-01_to_2022-Jun-03_352.5_16.5"}, "event_label": {"name": "Event label", "description": "Integer-valued grid identifier that uniquely labels each detected extreme event in space and time, consistent with the corresponding labels stored in the NetCDF dataset.", "value": 2022060001499}, "status": {"name": "Status", "description": "An ongoing event denotes an event that lasts up to the latest data available. These events are subject to change as newer data is added.", "value": false}, "start_date": {"name": "Start date", "description": "First date on which grid points are under the influence of an event", "value": "June 01 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 03 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "figures_available": {"name": "Figures available", "description": "True if figures were pre-generated for this event", "value": true}, "detection_var": {"name": "Detection variable", "description": "Variable used for the detection scheme", "value": "t2m"}, "event_type": {"name": "Event type", "description": "Type of the event detected", "value": "Heat wave"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 77101.02571754865}, "countries_affected": {"name": "Countries affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the countries affected by an event during its lifetime.", "value": ["Mali", "Mauritania"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa", "Africa"]}, "oceans_affected": {"name": "Ocean basins affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the ocean basins affected by an event during its lifetime.", "value": []}, "center_lat": {"name": "Center latitude", "description": "Latitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 16.5}, "center_lon": {"name": "Center longitude", "description": "Longitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 352.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "352.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 350.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 355.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 15.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 17.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-10.03, 17.03], [-9.68, 17.18], [-9.53, 17.53], [-9.0, 17.75], [-8.75, 17.65], [-8.5, 17.75], [-8.25, 17.65], [-8.0, 17.75], [-7.75, 17.65], [-7.5, 17.75], [-7.25, 17.65], [-7.0, 17.75], [-6.47, 17.53], [-6.32, 17.18], [-6.0, 17.04], [-5.68, 17.18], [-5.53, 17.53], [-5.0, 17.75], [-4.75, 17.65], [-4.5, 17.75], [-3.97, 17.53], [-3.75, 17.0], [-3.85, 16.75], [-3.75, 16.5], [-3.97, 15.97], [-4.32, 15.82], [-4.47, 15.47], [-4.82, 15.32], [-4.85, 15.25], [-4.75, 15.0], [-4.97, 14.47], [-5.5, 14.25], [-6.03, 14.47], [-6.18, 14.82], [-6.53, 14.97], [-6.68, 15.32], [-7.03, 15.47], [-7.18, 15.82], [-7.25, 15.85], [-7.5, 15.75], [-7.75, 15.85], [-7.82, 15.82], [-7.97, 15.47], [-8.5, 15.25], [-8.75, 15.35], [-9.0, 15.25], [-9.53, 15.47], [-9.68, 15.82], [-10.03, 15.97], [-10.25, 16.5], [-10.03, 17.03]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara", "Western-Africa"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-06-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-10.029999999999973, 15.97], [-10.25, 16.5], [-10.029999999999973, 17.03], [-9.680000000000007, 17.18], [-9.529999999999973, 17.53], [-9.0, 17.75], [-8.75, 17.65], [-8.5, 17.75], [-8.25, 17.65], [-8.0, 17.75], [-7.75, 17.65], [-7.5, 17.75], [-7.25, 17.65], [-7.0, 17.75], [-6.470000000000027, 17.53], [-6.319999999999993, 17.18], [-6.0, 17.04], [-5.680000000000007, 17.18], [-5.529999999999973, 17.53], [-5.0, 17.75], [-4.75, 17.65], [-4.5, 17.75], [-3.9700000000000273, 17.53], [-3.75, 17.0], [-3.8500000000000227, 16.75], [-3.75, 16.5], [-3.9700000000000273, 15.97], [-4.319999999999993, 15.82], [-4.470000000000027, 15.47], [-4.819999999999993, 15.32], [-4.850000000000023, 15.25], [-4.75, 15.0], [-4.970000000000027, 14.47], [-5.5, 14.25], [-6.029999999999973, 14.47], [-6.180000000000007, 14.82], [-6.529999999999973, 14.97], [-6.680000000000007, 15.32], [-7.029999999999973, 15.47], [-7.180000000000007, 15.82], [-7.25, 15.85], [-7.5, 15.75], [-7.75, 15.85], [-7.819999999999993, 15.82], [-7.970000000000027, 15.47], [-8.5, 15.25], [-8.75, 15.35], [-9.0, 15.25], [-9.529999999999973, 15.47], [-9.680000000000007, 15.82], [-10.029999999999973, 15.97]]]]}, "2022-06-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-10.029999999999973, 15.97], [-10.25, 16.5], [-10.029999999999973, 17.03], [-9.680000000000007, 17.18], [-9.529999999999973, 17.53], [-9.0, 17.75], [-8.75, 17.65], [-8.5, 17.75], [-8.25, 17.65], [-8.0, 17.75], [-7.75, 17.65], [-7.5, 17.75], [-7.25, 17.65], [-7.0, 17.75], [-6.470000000000027, 17.53], [-6.319999999999993, 17.18], [-6.0, 17.04], [-5.680000000000007, 17.18], [-5.529999999999973, 17.53], [-5.0, 17.75], [-4.75, 17.65], [-4.5, 17.75], [-3.9700000000000273, 17.53], [-3.75, 17.0], [-3.8500000000000227, 16.75], [-3.75, 16.5], [-3.9700000000000273, 15.97], [-4.319999999999993, 15.82], [-4.470000000000027, 15.47], [-4.819999999999993, 15.32], [-4.850000000000023, 15.25], [-4.75, 15.0], [-4.970000000000027, 14.47], [-5.5, 14.25], [-6.029999999999973, 14.47], [-6.180000000000007, 14.82], [-6.529999999999973, 14.97], [-6.680000000000007, 15.32], [-7.029999999999973, 15.47], [-7.180000000000007, 15.82], [-7.25, 15.85], [-7.5, 15.75], [-7.75, 15.85], [-7.819999999999993, 15.82], [-7.970000000000027, 15.47], [-8.5, 15.25], [-8.75, 15.35], [-9.0, 15.25], [-9.529999999999973, 15.47], [-9.680000000000007, 15.82], [-10.029999999999973, 15.97]]]]}, "2022-06-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-10.029999999999973, 15.97], [-10.25, 16.5], [-10.029999999999973, 17.03], [-9.680000000000007, 17.18], [-9.529999999999973, 17.53], [-9.0, 17.75], [-8.75, 17.65], [-8.5, 17.75], [-8.25, 17.65], [-8.0, 17.75], [-7.75, 17.65], [-7.5, 17.75], [-7.25, 17.65], [-7.0, 17.75], [-6.470000000000027, 17.53], [-6.319999999999993, 17.18], [-6.0, 17.04], [-5.680000000000007, 17.18], [-5.529999999999973, 17.53], [-5.0, 17.75], [-4.75, 17.65], [-4.5, 17.75], [-3.9700000000000273, 17.53], [-3.75, 17.0], [-3.8500000000000227, 16.75], [-3.75, 16.5], [-3.9700000000000273, 15.97], [-4.319999999999993, 15.82], [-4.470000000000027, 15.47], [-4.819999999999993, 15.32], [-4.850000000000023, 15.25], [-4.75, 15.0], [-4.970000000000027, 14.47], [-5.5, 14.25], [-6.029999999999973, 14.47], [-6.180000000000007, 14.82], [-6.529999999999973, 14.97], [-6.680000000000007, 15.32], [-7.029999999999973, 15.47], [-7.180000000000007, 15.82], [-7.25, 15.85], [-7.5, 15.75], [-7.75, 15.85], [-7.819999999999993, 15.82], [-7.970000000000027, 15.47], [-8.5, 15.25], [-8.75, 15.35], [-9.0, 15.25], [-9.529999999999973, 15.47], [-9.680000000000007, 15.82], [-10.029999999999973, 15.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.2247592734499904}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.241576674926313}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [37.49073208699042, 37.688601572138964, 37.24257455019648]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [38.519319136300396, 39.1385412207718, 38.66864395294124]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.2354184328415885, 2.4620831722874446, 2.027228419649906]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.2247592734499904, 3.1160882843445847, 2.5324732649899033]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6296471247599884, 1.7149930174133923, 1.4401407229274352]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.389333027590696, 2.2229531785949286, 1.8133355535923867]}}